standard or non standard chains,made according to ISO, DIN,ANSI,JIS,BS standard, stainless steel 08B, 08B HP, C2080,... We professionally ... export different kinds of transmission components, such as standard sprockets, taper lock sprockets, special sprockets,motorcycle sprocket , ... have adopted advanced CAD and CAM methods for design and advanced heat treatment craft.08B, 08B HP, ...